| 摘要 |
PROBLEM TO BE SOLVED: To appropriately provide low-pitched sound on the front side of a game machine frame. SOLUTION: Sound emitted to the front side of a low-pitched sound speaker 30 utilizes a closed space D surrounded by a front surface panel 52, a rear surface panel 53 and a frame 54 as an enclosure, passes successively through a bass reflex duct part 72, a bass reflex opening 55 and a low-pitched sound emitting hole part 50 from a cylindrical speaker installation part 63 and is emitted to the lower part front side of a front door 4. A speaker escape part 46 is provided on a game board 36, and even when the low-pitched sound speaker 30 is projected from the speaker installation part 63 and a panel structure 27 to the rear side, a gap 94 where a ball P falls between a game area which is the front surface of the game board 36 and the rear surface of the back surface panel 53 is appropriately secured. COPYRIGHT: (C)2007,JPO&INPIT
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